Apple's partnership with Google to be the second, default search engine in Safari ends in 2015, and Microsoft and Yahoo want to take advantage of it.
Apple does not have its own search engine and must rely on third parties, with Microsoft and its own Bingtrying to act.
Apple is likely to not continue with its partnership with Google, as Android is the main competing operating system to Apple's iOS
While in the case of the agreement between Yahoo and Mozilla, Mozilla for using Yahoo as the default search engine, here things are different.
In most cases, the browser (the company behind the browser) pays the company that has the search engine, while in the case of Mozilla, this is not the case.
Therefore, Microsoft and Yahoo are waiting for Apple's offer to use Bing or Yahoo on iOS devices, which will reduce Google's revenue from Apple for the current use of Google search on iOS devices.
Source: e-pcmag.gr
